wip: Serialization Test

- TryGetBehaviourInParent
- GetBehaviourInParent
- TryGetBehaviourInChildren
- GetBehaviourInChildren

Engine.Core/Abstract/ITransform.cs

@@ -1,11 +1,12 @@
 using System;
+using System.Collections.Generic;
 
 namespace Syntriax.Engine.Core.Abstract;
 
 /// <summary>
 /// Represents the transformation properties of an object such as position, scale, and rotation.
 /// </summary>
-public interface ITransform
+public interface ITransform : IAssignableGameObject, IEnumerable<ITransform>
 {
     /// <summary>
     /// Event triggered when the <see cref="Position"/> of the <see cref="ITransform"/> changes.
@@ -23,17 +24,75 @@ public interface ITransform
     Action<ITransform>? OnRotationChanged { get; set; }
 
     /// <summary>
-    /// The position of the <see cref="ITransform"/> in 2D space.
+    /// Event triggered when the <see cref="Parent"/> of the <see cref="ITransform"/> changes. The second parameter is the old <see cref="ITransform"/>.
+    /// </summary>
+    Action<ITransform, ITransform?>? OnParentChanged { get; set; }
+
+    /// <summary>
+    /// Event triggered when a new <see cref="ITransform"/> is added to the <see cref="Children"/>.
+    /// </summary>
+    Action<ITransform, ITransform>? OnChildrenAdded { get; set; }
+
+    /// <summary>
+    /// Event triggered when an <see cref="ITransform"/> is removed from the <see cref="Children"/>.
+    /// </summary>
+    Action<ITransform, ITransform>? OnChildrenRemoved { get; set; }
+
+    /// <summary>
+    /// The world position of the <see cref="ITransform"/> in 2D space.
     /// </summary>
     Vector2D Position { get; set; }
 
     /// <summary>
-    /// The scale of the <see cref="ITransform"/>.
+    /// The world scale of the <see cref="ITransform"/>.
     /// </summary>
     Vector2D Scale { get; set; }
 
     /// <summary>
-    /// The rotation of the <see cref="ITransform"/> in degrees.
+    /// The world rotation of the <see cref="ITransform"/> in degrees.
     /// </summary>
     float Rotation { get; set; }
+
+    /// <summary>
+    /// The local position of the <see cref="ITransform"/> in 2D space.
+    /// </summary>
+    Vector2D LocalPosition { get; set; }
+
+    /// <summary>
+    /// The local scale of the <see cref="ITransform"/>.
+    /// </summary>
+    Vector2D LocalScale { get; set; }
+
+    /// <summary>
+    /// The local rotation of the <see cref="ITransform"/> in degrees.
+    /// </summary>
+    float LocalRotation { get; set; }
+
+    /// <summary>
+    /// The parent <see cref="ITransform"/> of the <see cref="ITransform"/>.
+    /// </summary>
+    ITransform? Parent { get; }
+
+    /// <summary>
+    /// The <see cref="ITransform"/>s that have this <see cref="ITransform"/> as their <see cref="Parent"/>.
+    /// </summary>
+    IReadOnlyList<ITransform> Children { get; }
+
+    /// <summary>
+    /// Sets the parent <see cref="ITransform"/> of this <see cref="ITransform"/>.
+    /// </summary>
+    /// <param name="transform">The parent <see cref="ITransform"/> to set.</param>
+    void SetParent(ITransform? transform);
+
+    /// <summary>
+    /// Adds a child <see cref="ITransform"/> to this <see cref="ITransform"/>.
+    /// </summary>
+    /// <param name="transform">The child <see cref="ITransform"/> to add.</param>
+    void AddChild(ITransform transform);
+
+    /// <summary>
+    /// Removes a child <see cref="ITransform"/> from this <see cref="ITransform"/>.
+    /// </summary>
+    /// <param name="transform">The child <see cref="ITransform"/> to remove.</param>
+    void RemoveChild(ITransform transform);
 }

Engine.Core/BehaviourCollector.cs

@@ -6,13 +6,13 @@ using Syntriax.Engine.Core.Abstract;
 
 namespace Syntriax.Engine.Core;
 
-public class BehaviourCacher<T> : IAssignableGameManager, IEnumerable<T>
+public class BehaviourCollector<T> : IAssignableGameManager, IEnumerable<T>
 {
     public Action<IAssignable>? OnUnassigned { get; set; } = null;
     public Action<IAssignableGameManager>? OnGameManagerAssigned { get; set; } = null;
 
-    public Action<BehaviourCacher<T>, T>? OnCached { get; set; } = null;
+    public Action<BehaviourCollector<T>, T>? OnCollected { get; set; } = null;
-    public Action<BehaviourCacher<T>, T>? OnUncached { get; set; } = null;
+    public Action<BehaviourCollector<T>, T>? OnRemoved { get; set; } = null;
 
     private readonly List<T> _behaviours = new(32);
 
@@ -21,8 +21,8 @@ public class BehaviourCacher<T> : IAssignableGameManager, IEnumerable<T>
 
     public T this[Index index] => _behaviours[index];
 
-    public BehaviourCacher() { }
+    public BehaviourCollector() { }
-    public BehaviourCacher(IGameManager gameManager) => Assign(gameManager);
+    public BehaviourCollector(IGameManager gameManager) => Assign(gameManager);
 
     private void OnGameObjectRegistered(IGameManager manager, IGameObject gameObject)
     {
@@ -42,7 +42,7 @@ public class BehaviourCacher<T> : IAssignableGameManager, IEnumerable<T>
             return;
 
         _behaviours.Add(tBehaviour);
-        OnCached?.Invoke(this, tBehaviour);
+        OnCollected?.Invoke(this, tBehaviour);
     }
 
     private void OnBehaviourRemoved(IBehaviourController controller, IBehaviour behaviour)
@@ -53,7 +53,7 @@ public class BehaviourCacher<T> : IAssignableGameManager, IEnumerable<T>
         if (!_behaviours.Remove(tBehaviour))
             return;
 
-        OnUncached?.Invoke(this, tBehaviour);
+        OnRemoved?.Invoke(this, tBehaviour);
     }
 
     public bool Assign(IGameManager gameManager)

Engine.Core/Extensions/BehaviourControllerExtensions.cs

@@ -0,0 +1,47 @@
+using System.Diagnostics.CodeAnalysis;
+
+using Syntriax.Engine.Core.Abstract;
+
+namespace Syntriax.Engine.Core;
+
+public static class BehaviourControllerExtensions
+{
+    public static bool TryGetBehaviourInParent<T>(this IBehaviourController behaviourController, [NotNullWhen(returnValue: true)] out T? behaviour) where T : class
+    {
+        behaviour = GetBehaviourInParent<T>(behaviourController);
+        return behaviour is not null;
+    }
+
+    public static T? GetBehaviourInParent<T>(this IBehaviourController behaviourController) where T : class
+    {
+        IBehaviourController? controller = behaviourController;
+
+        while (controller is not null)
+        {
+            if (behaviourController.GetBehaviour<T>() is T behaviour)
+                return behaviour;
+
+            controller = controller.GameObject.Transform.Parent?.GameObject.BehaviourController;
+        }
+
+        return default;
+    }
+
+    public static bool TryGetBehaviourInChildren<T>(this IBehaviourController behaviourController, [NotNullWhen(returnValue: true)] out T? behaviour) where T : class
+    {
+        behaviour = GetBehaviourInChildren<T>(behaviourController);
+        return behaviour is not null;
+    }
+
+    public static T? GetBehaviourInChildren<T>(this IBehaviourController behaviourController) where T : class
+    {
+        if (behaviourController.GetBehaviour<T>() is T localBehaviour)
+            return localBehaviour;
+
+        foreach (ITransform transform in behaviourController.GameObject.Transform)
+            if (GetBehaviourInChildren<T>(transform.GameObject.BehaviourController) is T behaviour)
+                return behaviour;
+
+        return default;
+    }
+}

Engine.Core/Extensions/BehaviourExtensions.cs

@@ -7,18 +7,22 @@ namespace Syntriax.Engine.Core;
 
 public static class BehaviourExtensions
 {
-    public static bool TryFindBehaviour<T>(this IEnumerable<IGameObject> gameObjects, [NotNullWhen(returnValue: true)] out T? behaviour)
+    public static T? FindBehaviour<T>(this IEnumerable<IGameObject> gameObjects) where T : class
     {
-        behaviour = default;
-
         foreach (IGameObject gameObject in gameObjects)
-            if (gameObject.BehaviourController.TryGetBehaviour(out behaviour))
+            if (gameObject.BehaviourController.TryGetBehaviour(out T? behaviour))
-                return true;
+                return behaviour;
 
-        return false;
+        return default;
     }
 
-    public static void FindBehaviours<T>(this IEnumerable<IGameObject> gameObjects, List<T> behaviours)
+    public static bool TryFindBehaviour<T>(this IEnumerable<IGameObject> gameObjects, [NotNullWhen(returnValue: true)] out T? behaviour) where T : class
+    {
+        behaviour = FindBehaviour<T>(gameObjects);
+        return behaviour is not null;
+    }
+
+    public static void FindBehaviours<T>(this IEnumerable<IGameObject> gameObjects, List<T> behaviours) where T : class
     {
         behaviours.Clear();
         List<T> cache = [];

Engine.Core/Extensions/TransformExtensions.cs

@@ -4,11 +4,16 @@ namespace Syntriax.Engine.Core;
 
 public static class TransformExtensions
 {
-    public static ITransform SetTransform(this ITransform transform, Vector2D? position = null, float? rotation = null, Vector2D? scale = null)
+    public static ITransform SetTransform(this ITransform transform,
+        Vector2D? position = null, float? rotation = null, Vector2D? scale = null,
+        Vector2D? localPosition = null, float? localRotation = null, Vector2D? localScale = null)
     {
         if (position.HasValue) transform.Position = position.Value;
         if (rotation.HasValue) transform.Rotation = rotation.Value;
         if (scale.HasValue) transform.Scale = scale.Value;
+        if (localPosition.HasValue) transform.LocalPosition = localPosition.Value;
+        if (localRotation.HasValue) transform.LocalRotation = localRotation.Value;
+        if (localScale.HasValue) transform.LocalScale = localScale.Value;
         return transform;
     }
 }

Engine.Core/Factory/GameObjectFactory.cs

@@ -22,6 +22,9 @@ public class GameObjectFactory
         behaviourController ??= TypeFactory.Get<BehaviourController>();
         stateEnable ??= TypeFactory.Get<StateEnable>();
 
+        if (!transform.Assign(gameObject))
+            throw AssignException.From(transform, gameObject);
+
         if (!behaviourController.Assign(gameObject))
             throw AssignException.From(behaviourController, gameObject);
         if (!stateEnable.Assign(gameObject))

Engine.Core/Factory/TypeFactory.cs

@@ -1,20 +1,35 @@
 using System;
+using System.Reflection;
 
 namespace Syntriax.Engine.Core.Factory;
 
 public static class TypeFactory
 {
     public static T Get<T>(params object?[]? args) where T : class
+        => Get<T>(typeof(T), args);
+
+    public static Type Get(string typeName)
+    {
+        foreach (var type in Assembly.GetExecutingAssembly().GetTypes())
+            if (type.FullName?.Equals(typeName, StringComparison.OrdinalIgnoreCase) ?? false)
+                return type;
+        throw new Exception();
+    }
+
+    public static T Get<T>(string typeName, params object?[]? args) where T : class
+        => Get<T>(Get(typeName), args);
+
+    public static T Get<T>(Type type, params object?[]? args) where T : class
     {
         T? result;
 
         if (args is not null && args.Length != 0)
-            result = Activator.CreateInstance(typeof(T), args) as T;
+            result = Activator.CreateInstance(type, args) as T;
         else
-            result = Activator.CreateInstance(typeof(T)) as T;
+            result = Activator.CreateInstance(type) as T;
 
         if (result is null)
-            throw new Exception($"{typeof(T).Name} of type {typeof(T).Name} could not be created.");
+            throw new Exception($"{type.Name} could not be created or casted to {typeof(T).Name}.");
 
         return result;
     }

Engine.Core/Transform.cs

@@ -1,20 +1,42 @@
 using System;
+using System.Collections;
+using System.Collections.Generic;
 
 using Syntriax.Engine.Core.Abstract;
 
 namespace Syntriax.Engine.Core;
 
-[System.Diagnostics.DebuggerDisplay("Position: {Position.ToString(), nq}, Scale: {Scale.ToString(), nq}, Rotation: {Rotation}")]
+[System.Diagnostics.DebuggerDisplay("Name: {GameObject.Name, nq} Position: {Position.ToString(), nq}, Scale: {Scale.ToString(), nq}, Rotation: {Rotation}")]
 public class Transform : ITransform
 {
+    public Action<IAssignableGameObject>? OnGameObjectAssigned { get; set; } = null;
+
+    public Action<IAssignable>? OnUnassigned { get; set; } = null;
+
     public Action<ITransform>? OnPositionChanged { get; set; } = null;
     public Action<ITransform>? OnScaleChanged { get; set; } = null;
     public Action<ITransform>? OnRotationChanged { get; set; } = null;
 
+    public Action<ITransform, ITransform?>? OnParentChanged { get; set; } = null;
+    public Action<ITransform, ITransform>? OnChildrenAdded { get; set; } = null;
+    public Action<ITransform, ITransform>? OnChildrenRemoved { get; set; } = null;
+
+
     private Vector2D _position = Vector2D.Zero;
     private Vector2D _scale = Vector2D.One;
     private float _rotation = 0f;
 
+    private Vector2D _localPosition = Vector2D.Zero;
+    private Vector2D _localScale = Vector2D.One;
+    private float _localRotation = 0f;
+
+    private readonly List<ITransform> _children = [];
+
+    public IGameObject GameObject { get; private set; } = null!;
+    public ITransform? Parent { get; private set; } = null;
+
+    public IReadOnlyList<ITransform> Children => _children;
+
     public Vector2D Position
     {
         get => _position;
@@ -24,6 +46,7 @@ public class Transform : ITransform
                 return;
 
             _position = value;
+            UpdateLocalPosition();
             OnPositionChanged?.Invoke(this);
         }
     }
@@ -37,6 +60,7 @@ public class Transform : ITransform
                 return;
 
             _scale = value;
+            UpdateLocalScale();
             OnScaleChanged?.Invoke(this);
         }
     }
@@ -50,7 +74,210 @@ public class Transform : ITransform
                 return;
 
             _rotation = value;
+            UpdateLocalPosition();
             OnRotationChanged?.Invoke(this);
         }
     }
+
+    public Vector2D LocalPosition
+    {
+        get => _localPosition;
+        set
+        {
+            if (value == _localPosition)
+                return;
+
+            _localPosition = value;
+            UpdatePosition();
+            OnPositionChanged?.Invoke(this);
+        }
+    }
+
+    public Vector2D LocalScale
+    {
+        get => _localScale;
+        set
+        {
+            if (value == _localScale)
+                return;
+
+            _localScale = value;
+            UpdateScale();
+            OnScaleChanged?.Invoke(this);
+        }
+    }
+
+    public float LocalRotation
+    {
+        get => _localRotation;
+        set
+        {
+            if (value == _localRotation)
+                return;
+
+            _localRotation = value;
+            UpdateRotation();
+            OnRotationChanged?.Invoke(this);
+        }
+    }
+
+    public void SetParent(ITransform? transform)
+    {
+        if (transform == this || Parent == transform)
+            return;
+
+        ITransform? previousParent = Parent;
+        if (previousParent is not null)
+        {
+            previousParent.RemoveChild(this);
+            previousParent.OnPositionChanged -= RecalculatePosition;
+            previousParent.OnScaleChanged -= RecalculateScale;
+            previousParent.OnRotationChanged -= RecalculateRotation;
+            previousParent.OnParentChanged -= NotifyChildrenOnParentChange;
+        }
+
+        Parent = transform;
+
+        if (transform is not null)
+        {
+            transform.AddChild(this);
+            transform.OnPositionChanged += RecalculatePosition;
+            transform.OnScaleChanged += RecalculateScale;
+            transform.OnRotationChanged += RecalculateRotation;
+            transform.OnParentChanged += NotifyChildrenOnParentChange;
+        }
+
+        UpdateLocalPosition();
+        UpdateLocalScale();
+        UpdateLocalRotation();
+
+        OnParentChanged?.Invoke(this, previousParent);
+    }
+
+    public void AddChild(ITransform transform)
+    {
+        if (_children.Contains(transform))
+            return;
+
+        _children.Add(transform);
+        transform.SetParent(this);
+        OnChildrenAdded?.Invoke(this, transform);
+    }
+
+    public void RemoveChild(ITransform transform)
+    {
+        if (!_children.Remove(transform))
+            return;
+
+        transform.SetParent(null);
+        OnChildrenRemoved?.Invoke(this, transform);
+    }
+
+    public IEnumerator<ITransform> GetEnumerator() => _children.GetEnumerator();
+    IEnumerator IEnumerable.GetEnumerator() => _children.GetEnumerator();
+
+    private void NotifyChildrenOnParentChange(ITransform transform, ITransform? previousParent)
+    {
+        // TODO No idea how logical this is to propagate this to the children the way I'm doing right now.
+        // I was originally gonna just call `child.OnParentChanged?.Invoke(child, child.Parent);` but seems an unnecessary call too?
+        foreach (var child in Children)
+            child.OnParentChanged?.Invoke(transform, previousParent);
+    }
+
+    private void RecalculatePosition(ITransform _)
+    {
+        if (Parent is null)
+            return;
+
+        UpdatePosition();
+        OnPositionChanged?.Invoke(this);
+    }
+
+    private void RecalculateScale(ITransform _)
+    {
+        if (Parent is null)
+            return;
+
+        UpdateScale();
+        OnScaleChanged?.Invoke(this);
+    }
+
+    private void RecalculateRotation(ITransform _)
+    {
+        if (Parent is null)
+            return;
+
+        UpdatePosition();
+        UpdateRotation();
+        OnPositionChanged?.Invoke(this);
+        OnRotationChanged?.Invoke(this);
+    }
+
+    private void UpdateLocalPosition()
+    {
+        if (Parent is null)
+            _localPosition = Position;
+        else
+            _localPosition = Parent.Position.FromTo(Position).Scale(Parent.Scale);
+    }
+
+    private void UpdateLocalScale()
+    {
+        if (Parent is null)
+            _localScale = Scale;
+        else
+            _localScale = Scale.Scale(new(1f / Parent.Scale.X, 1f / Parent.Scale.Y));
+    }
+
+    private void UpdateLocalRotation()
+    {
+        if (Parent is null)
+            _localRotation = Rotation;
+        else
+            _localRotation = Rotation - Parent.Rotation;
+    }
+
+    private void UpdatePosition()
+    {
+        if (Parent is null)
+            _position = LocalPosition.Scale(Vector2D.One).Rotate(0f * Math.DegreeToRadian);
+        else
+            _position = Parent.Position + LocalPosition.Scale(new(1f / Parent.Scale.X, 1f / Parent.Scale.Y)).Rotate(Parent.Rotation * Math.DegreeToRadian);
+    }
+
+    private void UpdateScale()
+    {
+        if (Parent is null)
+            _scale = LocalScale;
+        else
+            _scale = Vector2D.Scale(Parent.Scale, LocalScale);
+    }
+
+    private void UpdateRotation()
+    {
+        if (Parent is null)
+            _rotation = LocalRotation;
+        else
+            _rotation = Parent.Rotation + LocalRotation;
+    }
+
+    public bool Assign(IGameObject gameObject)
+    {
+        if (GameObject is not null && GameObject.Initialized)
+            return false;
+
+        GameObject = gameObject;
+        OnGameObjectAssigned?.Invoke(this);
+        return true;
+    }
+
+    public bool Unassign()
+    {
+        if (GameObject is not null && GameObject.Initialized)
+            return false;
+
+        GameObject = null!;
+        OnUnassigned?.Invoke(this);
+        return true;
+    }
 }

Engine.Physics2D/Collider2DBehaviourBase.cs

@@ -37,7 +37,7 @@ public abstract class Collider2DBehaviourBase : BehaviourOverride, ICollider2D
 
     protected override void OnInitialize()
     {
-        BehaviourController.TryGetBehaviour(out _rigidBody2D);
+        BehaviourController.TryGetBehaviourInParent(out _rigidBody2D);
 
         BehaviourController.OnBehaviourAdded += OnBehaviourAddedToController;
         BehaviourController.OnBehaviourRemoved += OnBehaviourRemovedFromController;
@@ -45,6 +45,12 @@ public abstract class Collider2DBehaviourBase : BehaviourOverride, ICollider2D
         Transform.OnPositionChanged += SetNeedsRecalculation;
         Transform.OnRotationChanged += SetNeedsRecalculation;
         Transform.OnScaleChanged += SetNeedsRecalculation;
+        Transform.OnParentChanged += UpdateRigidBody2D;
+    }
+
+    private void UpdateRigidBody2D(ITransform _1, ITransform? _2)
+    {
+        BehaviourController.TryGetBehaviourInParent(out _rigidBody2D);
     }
 
     private void OnBehaviourAddedToController(IBehaviourController _, IBehaviour behaviour)

Engine.Physics2D/Physics2D.cs

@@ -1,13 +1,33 @@
-using System;
-
 using Syntriax.Engine.Core;
-using Syntriax.Engine.Physics2D;
 using Syntriax.Engine.Physics2D.Primitives;
 
 namespace Engine.Physics2D;
 
 public static partial class Physics2D
 {
+    public static bool Overlaps(this Shape shape, Vector2D point) => Overlaps(shape, point, out var _);
+    public static bool Overlaps(this Shape shape, Vector2D point, out float depth)
+    {
+        depth = float.MaxValue;
+        var vertices = shape.Vertices;
+        int count = vertices.Count;
+
+        for (int indexProjection = 0; indexProjection < count; indexProjection++)
+        {
+            Vector2D projectionVector = vertices[indexProjection].FromTo(vertices[(indexProjection + 1) % count]).Perpendicular().Normalized;
+
+            Projection shapeProjection = shape.ToProjection(projectionVector);
+            float projectedPoint = point.Dot(projectionVector);
+
+            if (shapeProjection.Max < projectedPoint || shapeProjection.Min > projectedPoint)
+                return false;
+
+            depth = Math.Min(depth, Math.Abs(Math.AbsMin(shapeProjection.Max - projectedPoint, shapeProjection.Min - projectedPoint)));
+        }
+
+        return true;
+    }
+
     public static bool Overlaps(this Circle left, Circle right)
     {
         float distanceSquared = left.Center.FromTo(right.Center).LengthSquared();
@@ -27,7 +47,7 @@ public static partial class Physics2D
         normal = distanceVector.Normalized;
 
         if (isOverlapping)
-            depth = MathF.Sqrt(radiusSumSquared - distanceSquared);
+            depth = Math.Sqrt(radiusSumSquared - distanceSquared);
 
         return isOverlapping;
     }
@@ -44,7 +64,7 @@ public static partial class Physics2D
         normal = distanceVector.Normalized;
 
         if (isOverlapping)
-            depth = MathF.Sqrt(radiusSquared - distanceSquared);
+            depth = Math.Sqrt(radiusSquared - distanceSquared);
 
         return isOverlapping;
     }

Engine.Physics2D/PhysicsEngine2DCollector.cs

@@ -6,7 +6,7 @@ using Syntriax.Engine.Physics2D.Abstract;
 
 namespace Syntriax.Engine.Physics2D;
 
-public class PhysicsEngine2DCacher : IPhysicsEngine2D, IAssignableGameManager
+public class PhysicsEngine2DCollector : IPhysicsEngine2D, IAssignableGameManager
 {
     public Action<IAssignable>? OnUnassigned { get; set; } = null;
     public Action<IAssignableGameManager>? OnGameManagerAssigned { get; set; } = null;
@@ -17,8 +17,8 @@ public class PhysicsEngine2DCacher : IPhysicsEngine2D, IAssignableGameManager
     protected readonly ICollisionDetector2D collisionDetector = null!;
     protected readonly ICollisionResolver2D collisionResolver = null!;
 
-    protected BehaviourCacher<IRigidBody2D> rigidBodyCacher = new();
+    protected BehaviourCollector<IRigidBody2D> rigidBodyCollector = new();
-    protected BehaviourCacher<ICollider2D> colliderCacher = new();
+    protected BehaviourCollector<ICollider2D> colliderCollector = new();
 
 
     public int IterationPerStep { get => _iterationPerStep; set => _iterationPerStep = value < 1 ? 1 : value; }
@@ -31,23 +31,23 @@ public class PhysicsEngine2DCacher : IPhysicsEngine2D, IAssignableGameManager
         for (int iterationIndex = 0; iterationIndex < IterationPerStep; iterationIndex++)
         {
             // Can Parallel
-            foreach (var rigidBody in rigidBodyCacher)
+            foreach (var rigidBody in rigidBodyCollector)
                 StepRigidBody(rigidBody, intervalDeltaTime);
 
             // Can Parallel
-            foreach (var collider in colliderCacher)
+            foreach (var collider in colliderCollector)
                 collider.Recalculate();
 
             // Can Parallel
-            for (int x = 0; x < colliderCacher.Behaviours.Count; x++)
+            for (int x = 0; x < colliderCollector.Behaviours.Count; x++)
             {
-                ICollider2D? colliderX = colliderCacher.Behaviours[x];
+                ICollider2D? colliderX = colliderCollector.Behaviours[x];
                 if (!colliderX.IsActive)
                     return;
 
-                for (int y = x + 1; y < colliderCacher.Behaviours.Count; y++)
+                for (int y = x + 1; y < colliderCollector.Behaviours.Count; y++)
                 {
-                    ICollider2D? colliderY = colliderCacher.Behaviours[y];
+                    ICollider2D? colliderY = colliderCollector.Behaviours[y];
 
                     if (!colliderY.IsActive)
                         return;
@@ -100,8 +100,8 @@ public class PhysicsEngine2DCacher : IPhysicsEngine2D, IAssignableGameManager
         if (GameManager is not null)
             return false;
 
-        colliderCacher.Assign(gameManager);
+        colliderCollector.Assign(gameManager);
-        rigidBodyCacher.Assign(gameManager);
+        rigidBodyCollector.Assign(gameManager);
 
         GameManager = gameManager;
         OnGameManagerAssigned?.Invoke(this);
@@ -114,35 +114,35 @@ public class PhysicsEngine2DCacher : IPhysicsEngine2D, IAssignableGameManager
         if (GameManager is null)
             return false;
 
-        colliderCacher.Unassign();
+        colliderCollector.Unassign();
-        rigidBodyCacher.Unassign();
+        rigidBodyCollector.Unassign();
 
         GameManager = null!;
         OnUnassigned?.Invoke(this);
         return true;
     }
 
-    public PhysicsEngine2DCacher()
+    public PhysicsEngine2DCollector()
     {
         collisionDetector = new CollisionDetector2D();
         collisionResolver = new CollisionResolver2D();
     }
 
-    public PhysicsEngine2DCacher(IGameManager gameManager)
+    public PhysicsEngine2DCollector(IGameManager gameManager)
     {
         Assign(gameManager);
         collisionDetector = new CollisionDetector2D();
         collisionResolver = new CollisionResolver2D();
     }
 
-    public PhysicsEngine2DCacher(IGameManager gameManager, ICollisionDetector2D collisionDetector, ICollisionResolver2D collisionResolver)
+    public PhysicsEngine2DCollector(IGameManager gameManager, ICollisionDetector2D collisionDetector, ICollisionResolver2D collisionResolver)
     {
         Assign(gameManager);
         this.collisionDetector = collisionDetector;
         this.collisionResolver = collisionResolver;
     }
 
-    public PhysicsEngine2DCacher(ICollisionDetector2D collisionDetector, ICollisionResolver2D collisionResolver)
+    public PhysicsEngine2DCollector(ICollisionDetector2D collisionDetector, ICollisionResolver2D collisionResolver)
     {
         this.collisionDetector = collisionDetector;
         this.collisionResolver = collisionResolver;

Engine.Serialization/DTOs/BehaviourControllerDTO.cs

@@ -0,0 +1,8 @@
+using System.Collections.Generic;
+
+namespace Engine.Serialization;
+
+public class BehaviourControllerDto : ClassInterchangeableDto
+{
+    public Dictionary<string, object?> Behaviours { get; set; } = [];
+}

Engine.Serialization/DTOs/ClassInterchangeableDto.cs

@@ -0,0 +1,6 @@
+namespace Engine.Serialization;
+
+public class ClassInterchangeableDto : EntityDto
+{
+    public string ClassType { get; set; } = null!;
+}

Engine.Serialization/DTOs/EntityDto.cs

@@ -0,0 +1,8 @@
+using System.Collections.Generic;
+
+namespace Engine.Serialization;
+
+public class EntityDto
+{
+    public Dictionary<string, object?> Fields { get; set; } = [];
+}

Engine.Serialization/DTOs/GameObjectDTO.cs

@@ -0,0 +1,10 @@
+namespace Engine.Serialization;
+
+public class GameObjectDto : ClassInterchangeableDto
+{
+    string Id { get; set; } = null!;
+    string Name { get; set; } = null!;
+    TransformDto Transform { get; set; } = null!;
+    BehaviourControllerDto BehaviourController { get; set; } = null!;
+    StateEnableDto StateEnable { get; set; } = null!;
+}

Engine.Serialization/DTOs/StateEnableDto.cs

@@ -0,0 +1,7 @@
+namespace Engine.Serialization;
+
+public class StateEnableDto : ClassInterchangeableDto
+{
+    public bool Enabled { get; set; } = false;
+
+}

Engine.Serialization/DTOs/TransformDTO.cs

@@ -0,0 +1,11 @@
+using Syntriax.Engine.Core;
+
+namespace Engine.Serialization;
+
+public class TransformDto : ClassInterchangeableDto
+{
+    string? ParentId { get; set; } = null;
+    Vector2D Position { get; set; } = Vector2D.Zero;
+    Vector2D Scale { get; set; } = Vector2D.Zero;
+    float Rotation { get; set; } = 0f;
+}

Engine.Serialization/Engine.Serialization.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>disable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="YamlDotNet" Version="15.1.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Engine.Core\Engine.Core.csproj" />
+  </ItemGroup>
+
+</Project>

Engine.Serialization/Serialization.cs

@@ -0,0 +1,85 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using Syntriax.Engine.Core;
+using Syntriax.Engine.Core.Abstract;
+using Syntriax.Engine.Core.Factory;
+using YamlDotNet.Serialization;
+
+namespace Engine.Serialization;
+
+public static class Serialization
+{
+    private static readonly ISerializer defaultSerializer = new SerializerBuilder().;
+
+    public static string Serialize(object @object)
+    {
+        EntityDto dto = new();
+        BindingFlags bindingFlags = BindingFlags.Public |
+                            BindingFlags.NonPublic |
+                            BindingFlags.Instance;
+
+        Type type = @object.GetType();
+        FieldInfo[] fieldInfos = type.GetFields(bindingFlags);
+        List<(string Name, object?)> list = fieldInfos.Where(f => f.FieldType.IsValueType || f.FieldType == typeof(string)).Select(f => (f.Name, f.GetValue(@object))).ToList();
+
+        return "";
+    }
+
+    // public static string SerializeGameObject(IGameObject gameObject) => Serialize(gameObject, defaultSerializer);
+    // public static T DeserializeGameObject<T>(StreamReader reader) where T : class, IGameObject
+    // {
+    //     Dictionary<string, object?> gameObjectDTO = Deserialize<Dictionary<string, object?>>(reader, defaultSerializer);
+    //     return CreateGameObject<T>(gameObjectDTO);
+    // }
+
+    // private static T CreateGameObject<T>(Dictionary<string, object?> gameObject) where T : class, IGameObject
+    // {
+    //     Type gameObjectType = gameObject.TryGetValue("ClassType", out var goType) ? TypeFactory.Get(goType?.ToString() ?? throw new Exception()) : typeof(GameObject);
+    //     Type stateEnableType = gameObject.TryGetValue("StateEnable.ClassType", out var seType) ? TypeFactory.Get(seType?.ToString() ?? throw new Exception()) : typeof(Transform);
+    //     Type transformType = gameObject.TryGetValue("Transform.ClassType", out var tType) ? TypeFactory.Get(tType?.ToString() ?? throw new Exception()) : typeof(Transform);
+    //     Type behaviourControllerType = gameObject.TryGetValue("BehaviourController.ClassType", out var bcType) ? TypeFactory.Get(bcType?.ToString() ?? throw new Exception()) : typeof(Transform);
+
+    //     ITransform transform = TypeFactory.Get<ITransform>(transformType);
+    //     IStateEnable stateEnable = TypeFactory.Get<IStateEnable>(stateEnableType);
+    //     IBehaviourController behaviourController = TypeFactory.Get<IBehaviourController>(behaviourControllerType);
+    //     T t = new GameObjectFactory().Instantiate<T>(transform, behaviourController, stateEnable, gameObjectType);
+
+    //     Dictionary<string, object?>? behaviours = gameObject["BehaviourController"] as Dictionary<string, object?> ?? throw new Exception();
+
+    //     foreach ((var key, var value) in behaviours)
+    //     {
+    //         Dictionary<string, object?> values = value as Dictionary<string, object?> ?? throw new Exception();
+
+    //         IBehaviour behaviour = TypeFactory.Get<IBehaviour>(values["ClassType"]);
+    //         behaviourController.AddBehaviour(behaviour);
+    //     }
+
+    //     return t;
+    // }
+
+    // public static string SerializeGameManager(IGameManager gameManager) => Serialize(gameManager, defaultSerializer);
+    // public static T DeserializeGameManager<T>(StreamReader reader) where T : class, IGameManager
+    // {
+    //     GameManagerDTO gameManagerDto = Deserialize<GameManagerDTO>(reader, defaultSerializer);
+
+    //     Type gameManagerType = (gameManagerDto.ClassType is not null) ? TypeFactory.Get(gameManagerDto.ClassType) : typeof(GameManager);
+    //     T gameManager = TypeFactory.Get<T>(gameManagerType);
+
+    //     foreach (var gameObjectDto in gameManagerDto.GameObjects)
+    //         gameManager.RegisterGameObject(CreateGameObject<IGameObject>(gameObjectDto));
+
+    //     return gameManager;
+    // }
+
+    // public static string Serialize<T>(T @object) => Serialize(@object, defaultSerializer);
+    // public static string Serialize<T>(T @object, ISerializer serializer) => serializer.Serialize(@object);
+
+    // public static T Deserialize<T>(string serializedString) => Deserialize<T>(serializedString, defaultSerializer);
+    // public static T Deserialize<T>(string serializedString, ISerializer serializer) => serializer.Deserialize<T>(serializedString);
+
+    // public static T Deserialize<T>(StreamReader reader) => Deserialize<T>(reader, defaultSerializer);
+    // public static T Deserialize<T>(StreamReader reader, ISerializer serializer) => serializer.Deserialize<T>(reader);
+}

Engine.Serialization/Vector2DYamlConverter.cs

@@ -0,0 +1,48 @@
+using System;
+
+using Syntriax.Engine.Core;
+
+using YamlDotNet.Core;
+using YamlDotNet.Core.Events;
+using YamlDotNet.Serialization;
+
+namespace Engine.Serialization;
+
+internal class Vector2DYamlConverter : IYamlTypeConverter
+{
+    public bool Accepts(Type type) => type == typeof(Vector2D);
+
+    public object? ReadYaml(IParser parser, Type type)
+    {
+        if (parser.Current is not MappingStart)
+            throw new InvalidOperationException("Expected MappingStart");
+
+        parser.MoveNext();
+        float x = 0.0f;
+        float y = 0.0f;
+
+        while (parser.Current != null && parser.Current is not MappingEnd)
+        {
+            var propertyName = ((Scalar)parser.Current).Value;
+            parser.MoveNext();
+            switch (propertyName)
+            {
+                case nameof(Vector2D.X): x = float.Parse(((Scalar)parser.Current).Value); break;
+                case nameof(Vector2D.Y): y = float.Parse(((Scalar)parser.Current).Value); break;
+            }
+            parser.MoveNext();
+        }
+        return new Vector2D(x, y);
+    }
+
+    public void WriteYaml(IEmitter emitter, object? value, Type type)
+    {
+        var vector = (Vector2D)(value ?? throw new Exception());
+        emitter.Emit(new MappingStart());
+        emitter.Emit(new Scalar(nameof(Vector2D.X)));
+        emitter.Emit(new Scalar(vector.X.ToString()));
+        emitter.Emit(new Scalar(nameof(Vector2D.Y)));
+        emitter.Emit(new Scalar(vector.Y.ToString()));
+        emitter.Emit(new MappingEnd());
+    }
+}